6 Answers
6

The latest edition of the Chicago Manual of Style recommends am and pm, with or without periods. They used to be set in small caps, but that's falling out of favour. You shouldn't use these abbreviations with the words morning, afternoon, evening, night, or o’clock.

There is no need to spell out times in an essay, although you might in creative writing or prose.

First and foremost let me say "Welcome to EUL." It is a fun place. Or maybe it is a place to have fun. Hey, if it is anything it is a place to talk about whether one should use the word 'fun' as an adjective. Regarding your answer, you are wrong. Of course, you were doomed to err when you answered the question. The correct answer depends on the style the original poster has chosen to adopt. What about the "other" MLA? mlanet.org/publications/style/style_numbers.html And why did your answer not address the previous answers?
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Michael Owen SartinDec 15 '13 at 15:57